Improvement in low-water indicator



y L. L. LEE.J

- Low Water Indicator.

W'WNESS Patented Oct. 5, 1869- diritta gleitet' @um i con. 7

L. L. LEE, Ao E MILWAUKEE, WIsooNsIN.

Letters PatentNo. 95,595, dated Octobefl` 5, 1869.

IMPROVEMENT 1N Low-WATER INDICATOR.

The Schedule referred to in these Letters .Patent and making part of the same.

use the same, reference'being had to the acoompauy-l ing drawing, forming part of this specification, in which-.

Figure 1 isa view of my improvement as attached to'a boiler.

- Figure 2, a side view ci' the same, with the dial broken away. Y

Figure 3, a top view of the same, as shown looking down un to il.

Figure 4, a sectional view, showing the valve whichl sounds the alarm for high or low. water.

Similar letters of reference -iu each of the figures' indicate corresponding parts.

The object of my invention is to provide an apparatus which will show the height of water iu the'boiler, in any part of the establishment, by the dial-indicators, and also, to -give an alarm when the water is ton high or too'low, by sounding a whistle, and with va sefety'- valve, withf a weight, which will sound the whistle at any pressure of steam desired. I

A is the outside shell of the water-indicator.l

B, dial-indicators.

C, whistle.

D, safety-valve.

E, safetyvalve lever.

F, 'safety-valveweight.

G, indicator hand.

H, adjustable joints to move'the indicator-hand.

I, yoke, with which the low :md high-water valve is opened.

K, lever, with which the yoke I is operated.

L, cover of the low-water valve.

M, water-pipe. l

N, steam-pipe, to show when the wateris too high or too low.

0, steam-pipe from safety-.valve to whistle. P, rods, with which the duplicate dial is operated.

Q, steam-pipe from the boilei` to the top ofthe apparatus.

R,- a groundjoiut to the spindle, which moves the hand ou the. dial. This spindle is a prolongation through the valve-case of the fulcrum of lever K. 'Y

S, low and high-water valve..

pe'ratton.

When this. gauge, which is an improvement on mine, patented April 19, 1864, is placed on a boiler,

it will be, as shown in lig. 1, with a ball-float attachedto lever K. The water in the lower part ofthe apparutus will be ljust about as high as shown in fig. l. When 4the water falls too low -in the boiler, the lever K will be brought down, and the pin, on the yoke at the outer end of the lever, will be thrown up, and open the valve. W'hen the water is too high, the pin I, toward the oat, will be raised, and the valve will he' opened, and the steam will pass to the whistle, and the alarm will be sounded.

The weight on the saiety-nlarln lever E can be placed so as to have-the safety-valve raised and sound the whistle' at any :unouut lot' pressure desired.

The lever K, as it raises and falls, turns the dialhandso as to show the height of the water at any point, and the duplica-te dial, 'placed in any part ofthe building, by means of' joints H, which can, by means of the slots, and screws, and rods il", be adjusted so as f to show the same height of'water as the dial at the indicator, and by this means the owner of au establish- Inentcan have the means of knowing the height ot the water in his boilers without goingto the boilers to lind out. v

What I clahn as my invention, und desire to secure by Letters Patent, is-

1. Safety-valve D, whistle l, yoke I, valve S, in-

dicator-dials B B, and shell A, all constructed and arranged substzmtially as described.

,.2 Duplicate dialsB B, rod P, adj nstable joint-s H, so arranged in any part ofthe building as to show the height of water, in combination with the water-indicator, substantially'as described.

3. Ground joint R, VdialV B, yoke I, valve S, lever K, and shell A, arranged substantially as described.

4. Shell A, dial B, whistle (i, salety-valve I), snfetyrod E, weight F, hand G, joints H, rods P, yoke fl, and valve S, all combined substantially as described.

. L. L. LEE.

Witnesses:

J'. B. SMITH, W.v M. Hormon. 

